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JPS5480741A - Focal point adjusting mechanism for camera - Google Patents

Focal point adjusting mechanism for camera

Info

Publication number
JPS5480741A
JPS5480741AJP14851777AJP14851777AJPS5480741AJP S5480741 AJPS5480741 AJP S5480741AJP 14851777 AJP14851777 AJP 14851777AJP 14851777 AJP14851777 AJP 14851777AJP S5480741 AJPS5480741 AJP S5480741A
Authority
JP
Japan
Prior art keywords
focusing operation
automatic
range
lever
effected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14851777A
Other languages
Japanese (ja)
Inventor
Shuichi Tamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon IncfiledCriticalCanon Inc
Priority to JP14851777ApriorityCriticalpatent/JPS5480741A/en
Priority to US05/965,432prioritypatent/US4221475A/en
Priority to DE19782853144prioritypatent/DE2853144A1/en
Publication of JPS5480741ApublicationCriticalpatent/JPS5480741A/en
Pendinglegal-statusCriticalCurrent

Links

Classifications

Landscapes

Abstract

PURPOSE: To facilitate and ensure the interchange from the automatic focusing operation to the manual focusing operation by maing it possible to detect the focal point of the optical system of a camera only when the range is to be set.
CONSTITUTION: Upon the automatic focusing operation, a ball is pushed into a notch 1a to fix a range finding ring 1 so that a range adjusting member 6 is turned through a charge member 20, which is made coactive with a film winding lever 28, and through a pin 24 thereby to effect the charge with a spring 5. The member 6 has its projection 6a abutting against the leading end portion 9a of a fixing lever 9. The retention of the member 6 is released by the lever 9 when a shutter button 29 is depressed so that the lens is moved to effect the automatic focusing operation in accordance with the found range by the member 6 through an automatic detecting circuit which is then energized. On the other hand, if an interchanging switch 12 is shifted to the automatic focusing operation, the retention of the member 6 by the lever 9 is not accomplished so that the lens is moved in response to the range finding operation which is effected by the manual rotations of the member 6. As a result, so long as the range is not found, the focusing operation is not effected for both the automatic and manual operations. During the automatic focusing operation, the interchange to the automatic one can be effected to correct the focusing operation.
COPYRIGHT: (C)1979,JPO&Japio
JP14851777A1977-12-091977-12-09Focal point adjusting mechanism for cameraPendingJPS5480741A (en)

Priority Applications (3)

Application NumberPriority DateFiling DateTitle
JP14851777AJPS5480741A (en)1977-12-091977-12-09Focal point adjusting mechanism for camera
US05/965,432US4221475A (en)1977-12-091978-12-01Camera having focus adjusting device
DE19782853144DE2853144A1 (en)1977-12-091978-12-08 CAMERA WITH FOCUS DEVICE

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP14851777AJPS5480741A (en)1977-12-091977-12-09Focal point adjusting mechanism for camera

Related Child Applications (1)

Application NumberTitlePriority DateFiling Date
JP5607580ADivisionJPS55146426A (en)1980-04-261980-04-26Focus control unit of camera

Publications (1)

Publication NumberPublication Date
JPS5480741Atrue JPS5480741A (en)1979-06-27

Family

ID=15454533

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP14851777APendingJPS5480741A (en)1977-12-091977-12-09Focal point adjusting mechanism for camera

Country Status (3)

CountryLink
US (1)US4221475A (en)
JP (1)JPS5480741A (en)
DE (1)DE2853144A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS5937926A (en)*1982-08-281984-03-01キヤノン株式会社Ophthalmic camera

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS5652710A (en)*1979-10-081981-05-12Canon IncMark finder for camera
US4291965A (en)*1980-10-061981-09-29Polaroid CorporationApparatus for automatically selecting a preselected focal position for a lens system
JPS57119330A (en)*1981-01-161982-07-24Canon IncCamera incorporating auto-focusing system
US4739411A (en)*1986-12-101988-04-19Eastman Kodak CompanyFocus warning system for a manually-focused still video camera having an electronic viewfinder
EP2026035A2 (en)*1998-12-162009-02-183DV Systems Ltd.3D camera for distance measurements
JP5773762B2 (en)*2011-06-032015-09-02キヤノン株式会社 Electronics
CN110888284B (en)*2019-11-122024-12-31武汉灵智云创科技有限公司 Focus point movement adjustment device

Citations (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS50151144A (en)*1974-05-251975-12-04
JPS5451827A (en)*1977-09-301979-04-24Minolta Camera Co LtdCamera with automatic focus matching device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
DE1197316B (en)1963-06-211965-07-22Agfa Ag Distance adjustment device for lenses of photographic cameras
DE2740283A1 (en)*1976-09-081978-03-16Canon Kk CAMERA WITH DEVICE FOR COORDINATING APERTURE AND FOCUSING

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS50151144A (en)*1974-05-251975-12-04
JPS5451827A (en)*1977-09-301979-04-24Minolta Camera Co LtdCamera with automatic focus matching device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JPS5937926A (en)*1982-08-281984-03-01キヤノン株式会社Ophthalmic camera

Also Published As

Publication numberPublication date
DE2853144A1 (en)1979-06-13
US4221475A (en)1980-09-09

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